Machine for curling the flanges of can ends



March 29 1927. 1,622,540

J. F. PETERS MACHINE FDR CURLING THE FLANGES 0? CAN ENDS Filed Spt. 1,1922 3 Sheets-Sheet 1 1,622,540 March J. F. PETERS MACHINE FOR CURLINGTHE FLANGES 0? CAN ENDS Filed Sept. 1, 1922 3 shgets-sheet 2 March29,1921. 5 25.4

J. PETERS MACHINE FOR CURLING THE FLANGES OF CAN ENDS Filed Sept. 1.1922 Sheets-Sheet s N W V V g5 m I; i

W Z4 6 J9 /Z7 N z; i I} H H H'Hii' 26 h-ri fw ii;QTQ 'I if"; i i

Patented Mar. 29, 1927.

UNITED Ares PATIENT OFFICE.

JOHN F. PETERS, OFROQHES TE R, NEW YORK, ASSIGNOR lO AMERICAN CANCOMTAN'Y,

. OF :YQRK,N, .A CORPORATION OF NEW JERSEY.

MACHINE FOR CURL'ING FLANGES OF CAN ENDS.

Application filed-September 1, 1922'. Serial No. 585,627.

My invention relates in general to machines for curlingthe flanges ,ofcan .ends to provide a channel for receiving a gasket, vor compoundlining, which is deposited therein prior to its application to a canbody.

A principal object of the invention is the provision .of a machine ofthis character in which a plurality of sets ,of fl. nge curling membersare arranged in superposed relationship to provide a lengthened. curlingtrack within practical machine. dimensions and in which members ,of-eaehset maybe individually adjusted, so that the curling ac.- tion .of ,eachset may be separately regulated.

Other .objects and advantages .ofthe invention will be apparentas it isbetter understood from the following description, which, taken inconnection with the accompanying drawings, discloses a preferredembodiment thereof. 7

Ref r ng o t a ings,

Figure l is a si e va o of a fl nge ing machine i Whi hmy nvention isembodied, said machine being shown .conjunction with an end cutting andforming press from which the 'endsare received;

Fig. 2 is a plan view ofthecurling ,mechanism and directing chute; v

Fig. 3 is a sectional view taken substans tially 0,1,1 the line 3 .-.3of Fig. 2;

Fig. 4 as an enlarged partial sectiontaken substantially on the line .ofFig. 2;

Fig. .5 is ,a similar section taken substantially .on the iline 5...5 ofFig. 2;; and

Fig. '6 is an enlarged section taken sub.-- stantially onthe line -66 ofl ig. .3.

For the sake of complete illustration, ,1 have shown upon the drawings acutting and f rming p ess 11, uppo te a ra 2 d having an c ive di mem e1 pe d f om a riven shaf 4, from h h an p ned sh ft15 of the flange c rlg m chineis riven .by means of a Suitable belt 16.

Th nds, f e b ng parti lly orm d in the press, re di ected by chu e 17nto ling mach ne, whi comp is a ra e. 18, which, in the presentinstance, is of .circular formation and has around a portion of p ip e ya templa 11 which i securedin place by means-of cap screws 21. The frame18 is pref rably arr ng n somewhat .inqlined posit cn and is Su tablymounted uponsupports 22, which also provide bearings 23 and24 for theshaft 15.

Secured in .the' template 19 are first and second operation segments 25and 26, which are provided respectively with grooves 27 and 28, by meansof which the can ends are curled to a desired extent, it beingunderstood that these grooves are adapted to successively accomplishdifferent amounts of curling action. Said segments .are formed of aplurality of shorter segments 29 and said segments are secured to themember 19 by means of cap screws 31 and the screws 21. Mountedcentrallyin the frame 18 is a rotatable member 32,'whicli is carried upon .ashortshaft 33, the latter being rotated by means of a bevel pinion 34and ,a gear 35, which is carried by the shaft 15. Said member 32 isprovided with a hub part 36, which has a lower extension 37 resting upona slight upward projection 38 on the bottom frame member 18 and spacingthe member 32 from said bottom frame. The periphery of the member 32 isflanged, as indicated .at 39, and an upper flanged member 41 is securedthereto by'means of screws 42, to provide a circumferential recess inwhich grooved rings 43 and 44 are secured by means of screws 45 and 46.The grooves in these rings correspond to those in the outer ringsegments 25 and 26 and are adapted to cooperate therewith to perform thefirst and second operations on the can end flanges.

The ends are delivered through the chute l7 and directed by guides 47and 48 into the groove 27 andthe corresponding groove in the ring 43.The member 32 is rotated by the gearing heretofore described and the Inthis manner, the complete curling operation is performed by mechanisn'iarranged within the practical limits of the frame member 18, it beingunnecessary to enlarge the proportions to accomplish the secondoperation upon the end flanges. The finished end is delivered from thegroove 28 into a delivery chute 51, in which said ends may accumulate instacked formation and from which they may be removed in any desiredmanner. I

It is desirable that the segments of the upper and lower tracks beindependently adjustable, in order to accurately control the extent ofcurling action in each operation and. for this purpose, I provideadjusting screws 52 and 53. which extend through the wall of the member19 and bear against the segmental. curling steels 29, suitable adjustingnuts 54 being provided upon these screws and two of the screws beingemployed for each segment 29.

In the inwardly. extending flanges of the n'ien'iber 19 and in thebottom plate 18, there are provided slots 55 and 56 permitting therequired movement of the screws 81 and 21 to permit adjustment of theouter ring segments. It is thus possible to control the distance betweenthe opposed curling elements of each set, which is of great practicalimportance, both from the standpoint of variable requirements in thedegree of curl to be provided in the can end flange and from thestandpoint of taking up wear. which might occur in the individualelements. Furthermore, it becomes possible to a certain extent, tooperate upon can ends of clifferent diameter. The independent adjustmentpermitted by the construction just described is of particular importancein the eonnnercial operation of the machine, it being thereby possibleto meet the exacting requirements of operation upon various can ends inwhich a nicety of dimension is essei'itial.

It is thought that the invention and many of its attendant advantageswill be understood from the foregoing description, and it will beapparent that various changes may be made in the form, construction andarrangement of the parts without departing from the spirit and scope ofthe invention, the form hereinbefore described being merely a preferredembodiment thereof. i

I do not claim broadly herein the inner and outer curling units having aplurality of sets of cooperating curling grooves and arranged atdifferent levels. the same being the subject in part of my Patent No.1,515,- 695, dated Nov. 16, 1924.

I claim:

1. A can end flange curling machine, comprising a plurality of sets ofgrooved cur ing steels arranged in superposed relationship, means formoving the can ends successively through the grooves of said steels,

and means for adjusting said steels individually to vary the extent offlange curling action by each thereof.

2. A can end flange curling machine, comprising a plurality of groovedcurling ments arranged in superposed relationship, means for passing theends through the curling grooves of said segments successively, andmeans for individually adjusting said segments.

3. A can end flange curling machine, comprising a plurality of groovedcurling seg ments arranged in superposed relationship, means for passingthe ends through the curling grooves of said segments successively, andmeans for individually adjusting said segments to vary the extent offlange curling action by each thereof.

4. A can end flange curling machine, comprising a plurality of sets ofgrooved flanging members arranged in superposed relationship, means forpassing the can ends between the members of each of said sets, and meansfor individually adjusting a member of each said set to vary the degreeof curling action.

5. A can end flange curling machine, commising grooved curling elementsco-operating to move the can end therebetween and curl the flangesthereof, said elements being arranged in double-deck formation andcertain elements at each level being individually adjustable to varycurling action thereof.

6. A can end flange curling machine, comprising a chute for the canends, flange curling devices operating upon the ends delivered from saidchute, said devices comprising individual sets arranged in superposedrelationship, and means for individually adjusting each set of saiddevices.

7. A can end flange curling machine, comprising a frame of circularformation having outer grooved members arranged in superposedrelationship, a rotary curling device arranged inwardly from saidgrooved members and being correspondingly grooved to co-operatetherewith to curl the can end flange, and means for individuallyadjusting said outer grooved members to vary the distance thereof fromsaid rotary curling clevice.

8. A can end flange curling machine, comprising a frame having aplurality of outer grooved members arranged one above the other, acorrespondingly grooved rotary member disposed inwardly from said outergrooved members and adapted to co-operate therewith to move and operateupon the can ends, means for transferring the ends from one of saidouter grooved members to another, and means for individually adjustingsaid members to vary the distance thereof from said co-operating rotarymember.

9. A can end flange curling machine, comprising achute for deliveringthe can ends,

a plurality of sets of curling members arranged in superposedrelationship, and means for individually adjusting the members of saidsets to vary the distance therebetween.

10. A can end flange curling machine, comprising means for deliveringthe can ends, flange curling devices adapted to engage the deliveredends and being arranged in separate sets in superposed relationship,means for adjusting the members of one of 10 said sets relative to themembers of another set, and means for transferring the ends from one setof said devices to another.

JOHN F. PETERS.

